A121184 Alkane systems (see Cyvin reference for precise definition).

0, 0, 1, 4, 16, 50, 160, 476, 1431, 4203, 12369, 36129, 105451, 307179, 893495, 2598476, 7545168

Offset

1,4

References

S. J. Cyvin, J. Brunvoll, B. N. Cyvin, W. Luttke, Enumeration of Staggered conformers of alkanes, Z. Naturforsch. 50a (1995) 857-863 Table 1 column C_1.

Links

Table of n, a(n) for n=1..17.

S. J. Cyvin, Jianji Wang, J. Brunvoll, Shiming Cao, Ying Li, B. N. Cyvin, and Yugang Wang, Staggered conformers of alkanes: complete solution of the enumeration problem, J. Molec. Struct. 413-414 (1997), 227-239 Table 8, subsums of column C_1.

S. J. Cyvin, B. N. Cyvin, J. Brunvoll, J. Wang, Enumeration of staggered conformers of alkanes and monocyclic cycloalkanes, J. Molec. Struct., 445 (1998), 127-137.

Crossrefs

Sequence in context: A203094 A298173 A323932 * A203840 A089093 A316321

Adjacent sequences: A121181 A121182 A121183 * A121185 A121186 A121187

Keyword

nonn

Author

N. J. A. Sloane, Aug 17 2006

Status

approved